Brief analysis of the relative accuracy of different versions of Abbyy OCR software (ver. 6 in normal mode, ver. 8 in normal mode, and ver. 8 in fast mode), based on a small sampling of scanned pages.

Overview of results is in abbyy_accuracy_overview.pdf; the three pairwise comparisons are in abbyy_8_accuracy.pdf (which also contains further details on method and on the reporting format), abbyy_6vs8_accuracy.pdf and abbyy_6vs8fast_accuracy.pdf; reduced versions of the original page scans are in abbyy_8_images.pdf.

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